Device for planing curved surfaces



2 Sheets-Sheet 1.

(No Model.)

||| nmllllillllmm G. F. GEYER.

DEVICE FOR PLANING GURVED SURFACES.

g lll llllll II wf fii (No Model.) 2 eeeeeeeeeeee 2.'

G. F. GEYER.

DEVICE FOR PLANING GURVBD SURFACES.

No. 373,586. I Patented Nov. 22, 1887.

i munmminnnu I w" l/H ilnrrnn STATES OHRISTOF F. GEYER, OF AURORA, ILLINOIS.

DEVICE FOR PLANING CURVED SURFACES.

SPECIFICATION forming part of Letters Patent No. 373,586, dated November 22, 1887.

Application filed March 14, 1887.

To aZZ whom it may concern.-

Be it known that 1, CHRISTOF F. GEYER, of Aurora, in the county of Kane and State of Illinois, have invented a new and useful Improvement in Planing-Machines, of which the following is aspecification, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

This invention relates to means whereby a driving-box of a locomotive may be planed out to receive the brass shell which forms the journal'boX of the axle.

In the accompanying drawings, Figure l is a side view of a part of a planing-machine provided with my invention. Fig. 2 is a front view of the parts shown in Fig. 1. Fig. 3 is an enlarged vertical section of the tool-holding bar. Fig. 4is a transverse section on line at w of Fig. 3. Fig. 5 is a rear view of Fig. 3.

Similar letters of reference indicate similar parts in the respective'figures.

This invention is applied to an ordinary planing-machine havingalongitudinally-moving' bed, a vertically-adjustable cross-head, an automatic feed, and other features common to such machines, which need not be here enumerated.

A represents the main standard of the planing-machine; B, its longitudinallymoving bed; 0, its vertically-adjustable cross-head, and a a parts of the ordinary feeding-gear.

D D represent two driving-boxes to be operated upon, resting upon the bed of the machine.

E is a forged steel bar made sufficiently heavy and strong to withstand the strain to which it is subjected. At the lower end of the bar is a circular enlargement, b, and at the rear of the bar is a groove, 0. Concentric with the circular enlargement b is a shaft or spindle, 0, upon which is mounted a gearwheel, d, and a faceplate, e. The front part of this face-plate is shown in Fig. 4, and is of dovetailed shape in cross-section, the plate serving as a vertical guide for the tool-carrier f, the tool being represented by g. The toolcarrier is made vertically adjustable upon the dovetailed projection. by means of the screw 71., which works within a halfnut, t, set into the face-plate e. The gear-wheel d is driven by the gear-pinion 7c upon the end of the shaft Serial No. 230,780. (No model.)

Z, which rests within the groove at the rear of the bar E. The shaft Z, and with it the gears which give rotation to the face-plate e, may be driven by hand or by ordinary feed gearwheels. It is of course understood that the bar E may be given a lateral movement on the eross-head by the ordinary means.

Supposing it is desired to plane out a num ber of such driving'boxes as are shown in Figs. 1 and 2, the boxes are suitably placed in line with each other and fastened to the bed-plate. The tool being properly secured within its post, the shaft Z is revolved so as to rotate the spindle, and accordingly the faceplate carrying the tool. The tool being brought under one of the shoulders of the driving-boxes and motion given to the bedplate of the machine, the said shoulder of each driving-box will be squared. On giving a suitable partial revolution to the shaft l and a corresponding movement to the tool the tool will be moved around a center formed by the shaft or spindle c, and the entire circular part of the driving box, by repeated movements of the bed-plate, will be planed out. It is of course understood that the tool must be adjusted for each cut in order to complete the entire curve.

The bar Eand the devices forming the subject-matter of my invention may be held in the tool-holder of a planing-machine in the way in which any ordinary cutting-tool is held, and the tool may be operated by hand or power, as preferred by the operator.

An important advantage arising from the use of this invention is, that a number of boxes may be operated upon at one time, the numher being only limited by the length of the table or bed.

Should the operator prefer, both shoulders of the driving-box may be squared up before the planing of the circular part is begun; but the entire operation will be a familiar one to those who are accustomed to work upon ordinary planing or slotting machines.

By planing two or more driving boxes out at one operation greater accuracy is obtained, and the boxes may be used interchangeably.

The invention is notintended to be confined solely to the work of planing driving-boxes for locomotives, as it is obvious that it may be used for performing any work requiring the movement of the tool in a circular'direction and open on one side.

Having described my invention, I claim- 1. A bar and a faceplate having a spindle mounted therein and serving as a support for the tool-carrier, combined with a gear-wheel mounted upon said spindle and a pinion ona shaft carried by the bar, by means of which gearing the carrier may be rotated, substantially as set forth.

2. A bar, a face-plate having a spindle mounted therein, an adjustable tool-carrier carried by said face plate, a gear -wheel mounted upon said spindle, and a pinion on a shaft carried by said bar, substantially as set forth.

3. A bar having a circular enlargement at its lower end, and having its rear portion grooved or slotted, combined with a faceadapted to have rotary motion and provided 7 with a dovetailed projection, combined with a too1-carrier having a recess adapted to fit on the said dovetailed projection and being adjustable thereon by means of a screw and halfnut, substantially as specified.

In testimony whereof I have hereunto set-my hand and seal.

CHRTSTOF F. GEYER. [L. s]

Witnesses:

SoL. HIRSH, Guns. J. PFRANGLE. 

